How can you set up a demonstration version of a Zoho CRM implementation to show employers/clients what can be achieved?

Do you pay for Zoho CRM Enterprise/Zoho One for this purpose?

Does Zoho offer a free version of Enterprise for independent Zoho developers?

(Versions other than Enterprise would not support custom modules, etc so would be useless for any advanced implementation).

Anyone have any ideas/suggestions?

Thanks.